Click on a day for an hourly weather forecast
The weather in Posio in May is very cold with temperatures between 2°C and 10°C, warm clothes are a must.
You can expect about 3 to 8 days of rain in Posio during the month of May. It’s a good idea to bring along your umbrella so that you don’t get caught in poor weather.
Posio is going to experience quite a number of days of snow during May. It’s the perfect time to build snowmen, drink hot cocoa, and have a snowball fight. Just remember to wear a warm scarf and a pair of mittens!
Our weather forecast can give you a great sense of what weather to expect in Posio in May 2025.
If you’re planning to visit Posio in the near future, we highly recommend that you review the 14 day weather forecast for Posio before you arrive.
| Month | Temperatures | Rainy Days | Dry Days | Snowy Days | Rainfall | Weather | More details |
|---|---|---|---|---|---|---|---|
| January | -9° / -14° | 1 | 4 | 25 | 62 mm | Awful | Posio in January |
| February | -8° / -13° | 1 | 4 | 24 | 59 mm | Awful | Posio in February |
| March | -4° / -10° | 3 | 4 | 25 | 63 mm | Awful | Posio in March |
| April | 1° / -4° | 6 | 4 | 23 | 73 mm | Awful | Posio in April |
| May | 10° / 2° | 7 | 15 | 9 | 81 mm | Awful | Posio in May |
| June | 16° / 7° | 8 | 21 | 1 | 106 mm | Ok | Posio in June |
| July | 19° / 10° | 9 | 22 | 0 | 124 mm | Ok | Posio in July |
| August | 16° / 8° | 8 | 23 | 0 | 125 mm | Ok | Posio in August |
| September | 11° / 5° | 8 | 20 | 2 | 89 mm | Awful | Posio in September |
| October | 3° / -1° | 8 | 10 | 14 | 93 mm | Awful | Posio in October |
| November | -2° / -5° | 6 | 3 | 23 | 80 mm | Awful | Posio in November |
| December | -6° / -10° | 2 | 3 | 27 | 70 mm | Awful | Posio in December |